This is a shot of SC 102, SC 105 and SC 42, left to right, marked N-5, N-6 and N-2 respectively.
Lewis Clephane, in his monograph on the chasers, lists a hull marking set for the U.S.S. Jouett Group that includes these chasers marked as shown in the photo; and the same photo set from the UVA collection includes a shot of SC 353 marked as M-6, another of the same series, and a shot of SC 102 showing the hull number on the bow.
Photograph of submarine chasers. From Photograph albums of World War I subchasers (#11502-b), Special Collections, University of Virginia Library. Thanks to Phil Lord for submitting this photo scan.